Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ac2102ed7aef264…

MALICIOUS

PDF

86.1 KB Created: 2021-05-21 17:53:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 87bd312611cc51e5ba848c22a6632162 SHA-1: 35cace93d80502283d1548eac3894a1074c500f1 SHA-256: 0ac2102ed7aef26479e03ce2135027c10ccb1404d88c90434c6c03d20847b0c4
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://pelibifir.ru/strik?utm_term=descargar+biblia+interlineal+hebreo+espa%25C3%25B1ol+gratis+pdf PDF link annotation
    • https://jefilixepiras.weebly.com/uploads/1/3/2/6/132681342/8840313.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420939/normal_5feaff965ca77.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389354/normal_5fee0dac42e9f.pdfIn PDF document text
    • https://tarazedi.weebly.com/uploads/1/3/4/6/134687061/74d294c1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412575/normal_6003ac1828fa6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366389/normal_5fdf6573cfa2a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491410/normal_5fefda043c2ad.pdfIn PDF document text
    • https://konevolog.weebly.com/uploads/1/3/1/6/131606720/8916224.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486550/normal_5ffb83d2f20c3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387928/normal_60464305a5a04.pdfIn PDF document text
    • https://serofewaz.weebly.com/uploads/1/3/1/3/131379274/nimafujajejirasawas.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427284/normal_6024fe7fd8bad.pdfIn PDF document text
    • https://sisuveraxom.weebly.com/uploads/1/3/2/7/132740665/vudewelifaso_gopuniwul_kaxife.pdfIn PDF document text
    • https://gumevuwogixuxuj.weebly.com/uploads/1/3/5/3/135317748/deb62e4596.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374968/normal_603cf0fba3842.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456369/normal_5ff13b5a4c746.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/8dcced36-d7ba-4ce6-9558-fe3ced7663b0/how_to_stack_whirlpool_duet_washer_and_dryer_instruction.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4adc4393-1161-418f-a717-bd3162d63f6c/vajodeken.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b938bcb8-38d0-4daf-8e1d-59f898fc1219/papaxetufenuwobinuvu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/91ef9fd0-b155-47f6-8d74-618c6936286f/personality_types_compatibility_chart.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e71a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE71A 5556 bytes
SHA-256: 06efac09627b7f8d3ce94dd70cb509a60716c4359bafbbbb120dfb620af03d9f
font_01_sfnt_off0000f9a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9A5 13576 bytes
SHA-256: 84365e5683811dc9474771ac83c357beb7d24e3440d186d24cf8ff9fc5cd920a
font_02_sfnt_off000124dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124DD 16092 bytes
SHA-256: ea75db71c9df7250347a03039f742fcd189f5fc3f08964e696816fa8b5227073
font_03_sfnt_off000139a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x139A5 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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